(196256) 2003 EH1

(196256) 2003 EH1
Discovery[1][2]
Discovered byLONEOS
Discovery date6 March 2003
Designations
(196256) 2003 EH1
NEO · Amor[1]
extinct comet
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc4035 days (11.05 yr)
Aphelion5.055446 AU (756.2840 Gm) (Q)
Perihelion1.190060 AU (178.0304 Gm) (q)
3.12275 AU (467.157 Gm) (a)
Eccentricity0.618907 (e)
5.52 yr (2015.6 d)
119.8736° (M)
0° 10m 42.984s / day (n)
Inclination70.865968° (i)
282.972499° (Ω)
171.3709° (ω)
Earth MOID0.21143 AU (31.629 Gm)
Jupiter MOID0.231939 AU (34.6976 Gm)
TJupiter2.065
Physical characteristics
Dimensions2.6–4.0 km†
12.650±0.033 h[3]
16.2[1]

(196256) 2003 EH1 is an asteroid, classified as near-Earth object of the Amor group. It was discovered on 6 March 2003, by astronomers of the LONEOS program at Anderson Mesa Station near Flagstaff, Arizona, in the United States.[2][4] Peter Jenniskens (2003–2004) proposed that it is the parent body of the Quadrantid meteor shower.[5][6] 2003 EH1 is likely an extinct comet and may even be related to the comet C/1490 Y1. 2003 EH1 came to perihelion on 12 March 2014.[1]

The orbit of 2003 EH1
  1. ^ a b c d e Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference IAUC8252 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Kasuga2015 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Nature2003 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Jenniskens2004 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Porubcan2007 was invoked but never defined (see the help page).